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go - What is the meaning of * and ? - Stack Overflow Golang does not allow pointer-arithmetic (arrays do not decay to pointers) and insecure casting All downcasts will be checked using the runtime-type of the variable and either panic or return false as second return-value when the instance is of the wrong type, depending on whether you actually take the second return type or not
arrays - How do you clear a slice in Go? - Stack Overflow You'll need to complete a few actions and gain 15 reputation points before being able to upvote Upvoting indicates when questions and answers are useful What's reputation and how do I get it? Instead, you can save this post to reference later
How to check if a map contains a key in Go? - Stack Overflow Here's how you check if a map contains a key val, ok := myMap["foo"] If the key exists if ok { Do something } This initializes two variables val is the value of "foo" from the map if it exists, or a "zero value" if it doesn't (in this case the empty string) ok is a bool that will be set to true if the key existed If you want, you can shorten this to a one-liner if val, ok := myMap
What is an idiomatic way of representing enums in Go? It uses structures in Golang, and draws upon Object Oriented Principles to tie them all together in a neat little bundle None of the underlying code will change when a new enumeration is added or deleted The process is: Define an enumeration structure for enumeration items: EnumItem It has an integer and string type